A 31-year-old man was presented to ED for progressive shortness of breath and skin changes. Examination Physical examination revealed areas of depigmentation with sparing of the perifollicular areas and pigmentation was preserved over the veins. Biopsy specimen indicated hyalinized collagen in the dermis.

Identify this derma condition. *This case is from Docplexus editorial team for educative purpose only. Source: NEJM Stay Connected, the answer will be posted in the next 48h!